libc/test/src/stdio/remove_test.cpp

   1 //===-- Unittests for remove ----------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "src/fcntl/open.h"
  10 #include "src/stdio/remove.h"
  11 #include "src/sys/stat/mkdirat.h"
  12 #include "src/unistd/access.h"
  13 #include "src/unistd/close.h"
  14 #include "test/UnitTest/ErrnoSetterMatcher.h"
  15 #include "test/UnitTest/Test.h"
  16
  17 #include "src/errno/libc_errno.h"
  18 #include <unistd.h>
  19
  20 TEST(LlvmLibcRemoveTest, CreateAndRemoveFile) {
  21   // The test strategy is to create a file and remove it, and also verify that
  22   // it was removed.
  23   LIBC_NAMESPACE::libc_errno = 0;
  24   using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;
  25   using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
  26
  27   constexpr const char *FILENAME = "remove.test.file";
  28   auto TEST_FILE = libc_make_test_file_path(FILENAME);
  29   int fd = LIBC_NAMESPACE::open(TEST_FILE, O_WRONLY | O_CREAT, S_IRWXU);
  30   ASSERT_ERRNO_SUCCESS();
  31   ASSERT_GT(fd, 0);
  32   ASSERT_THAT(LIBC_NAMESPACE::close(fd), Succeeds(0));
  33
  34   ASSERT_THAT(LIBC_NAMESPACE::access(TEST_FILE, F_OK), Succeeds(0));
  35   ASSERT_THAT(LIBC_NAMESPACE::remove(TEST_FILE), Succeeds(0));
  36   ASSERT_THAT(LIBC_NAMESPACE::access(TEST_FILE, F_OK), Fails(ENOENT));
  37 }
  38
  39 TEST(LlvmLibcRemoveTest, CreateAndRemoveDir) {
  40   // The test strategy is to create a dir and remove it, and also verify that
  41   // it was removed.
  42   LIBC_NAMESPACE::libc_errno = 0;
  43   using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;
  44   using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
  45   constexpr const char *FILENAME = "remove.test.dir";
  46   auto TEST_DIR = libc_make_test_file_path(FILENAME);
  47   ASSERT_THAT(LIBC_NAMESPACE::mkdirat(AT_FDCWD, TEST_DIR, S_IRWXU),
  48               Succeeds(0));
  49
  50   ASSERT_THAT(LIBC_NAMESPACE::access(TEST_DIR, F_OK), Succeeds(0));
  51   ASSERT_THAT(LIBC_NAMESPACE::remove(TEST_DIR), Succeeds(0));
  52   ASSERT_THAT(LIBC_NAMESPACE::access(TEST_DIR, F_OK), Fails(ENOENT));
  53 }
  54
  55 TEST(LlvmLibcRemoveTest, RemoveNonExistent) {
  56   using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;
  57   ASSERT_THAT(LIBC_NAMESPACE::remove("non-existent"), Fails(ENOENT));
  58 }